The Post Duplicator plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the duplicate_post() function in all versions up to, and including, 3.0.11. This is due to the function not verifying that the user has edit_others_posts capability before accepting a selectedAuthorId parameter via the duplicate-post REST endpoint. This makes it possible for authenticated attackers, with Contributor-level access and above, to create duplicated posts attributed to any user, including administrators.
CVE-2026-4244
MEDIUMPre-NVD 4.34.3—Trending — 3 sources updated this week
EchelonGraph scoreHIGH confidence
Score 4.3 from GitHub Security Advisory published 2026-08-22. a secondary CVSS source baseline 4.3; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 4.3
- EG Score
- 4.3(high)
- EG Risk
- 19(Track)EG Risk 19/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity43% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 9%
- KEV
- Not listed
Published
August 22, 2026
Last Modified
August 24, 2026
References (5)
- security@wordfencehttps://plugins.trac.wordpress.org/browser/post-duplicator/trunk/includes/api.php#L520
- security@wordfencehttps://plugins.trac.wordpress.org/browser/post-duplicator/trunk/includes/api.php#L550
- security@wordfencehttps://plugins.trac.wordpress.org/browser/post-duplicator/trunk/includes/api.php#L728
- security@wordfencehttps://plugins.trac.wordpress.org/changeset/3485579/
- security@wordfencehttps://www.wordfence.com/threat-intel/vulnerabilities/id/64553742-ff2b-40e9-92c3-3458a9f988a2?source=cve
Vendor Advisories for CVE-2026-4244(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 23× in last 7d / 26× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-08-30 01:22 UTCEPSS rescore
- 2026-08-29 10:19 UTCEG score recompute
- 2026-08-29 10:19 UTCGHSA enrichment
- 2026-08-28 21:41 UTCEPSS rescore
- 2026-08-28 11:37 UTCEG score recompute
- 2026-08-28 11:37 UTCGHSA enrichment
- 2026-08-27 14:25 UTCEPSS rescore
- 2026-08-27 12:54 UTCEG score recompute
- 2026-08-27 12:54 UTCGHSA enrichment
- 2026-08-26 14:46 UTCEPSS rescore
- 2026-08-26 14:11 UTCGHSA enrichment
- 2026-08-25 15:29 UTCEG score recompute
- 2026-08-25 15:29 UTCGHSA enrichment
- 2026-08-25 13:49 UTCEPSS rescore
- 2026-08-24 16:47 UTCGHSA enrichment
- 2026-08-24 14:25 UTCEG score recompute
- 2026-08-24 14:25 UTCGHSA enrichment
- 2026-08-24 13:23 UTCEG score recompute
- 2026-08-24 13:23 UTCGHSA enrichment
- 2026-08-24 10:45 UTCEG score recompute
- 2026-08-24 10:45 UTCGHSA enrichment
- 2026-08-23 12:03 UTCEG score recompute
- 2026-08-23 12:03 UTCGHSA enrichment
- 2026-08-22 13:21 UTCEG score recompute
- 2026-08-22 12:46 UTCEG score recompute
Show 1 moreShow fewer
- 2026-08-22 12:45 UTCMITRE cvelistV5first tracked
Frequently asked(5)
What is CVE-2026-4244?
CVE-2026-4244 is a medium vulnerability published on August 22, 2026. The Post Duplicator plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the duplicatepost() function in all versions up to, and including, 3.0.11. This is due to the function not verifying that the user has editothers_posts capability before…
When was CVE-2026-4244 disclosed?
CVE-2026-4244 was first published in the National Vulnerability Database on August 22, 2026, with the most recent update on August 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-4244 actively exploited?
CVE-2026-4244 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 90.7% of all scored CVEs.
What is the CVSS score of CVE-2026-4244?
CVE-2026-4244 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-4244?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-4244, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-4244
Is Your Infrastructure Affected by CVE-2026-4244?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.